After fears concern at the battery or tablet itself, I decided to buy this charger.
Although took me because it allows me to load properly again a tablet (and which now stops charging alone when she reaches 100% load), probably a amperage problem with the old charger (original ...)
I did not put the charger to the test but with a tablet and a phone it works perfectly.
Note that it was delivered very quickly, which was very valuable for me.